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1276-05-293 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1276-05-293: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include hole_type: DRILLED, head_style: HEXAGON EXTENDED WASHER, head_height: 13.0 MILLIMETERS NOMINAL MM, thread_class: 2A A, hole_diameter: 2.00 MILLIMETERS NOMINAL MM, thread_length: 38.0 MILLIMETERS MINIMUM AND 41.0 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-221-9771, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1276-05-293
NSN: 5305-01-221-9771
FSC: 5305 — Screws
CAGE: 44114 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
hole_typeDRILLED
head_styleHEXAGON EXTENDED WASHER
head_height13.0 MILLIMETERS NOMINAL MM
thread_class2A A
hole_diameter2.00 MILLIMETERS NOMINAL MM
hole_quantity6
thread_length38.0 MILLIMETERS MINIMUM AND 41.0 MILLIMETERS MAXIMUM MM
fastener_length41.00 MILLIMETERS NOMINAL MM
hardness_rating32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_between_flats22.0 MILLIMETERS NOMINAL MM
NSN5305-01-221-9771
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1276-05-293 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
EXTENDED WASHER THICKNESS: 5.0 MILLIMETERS NOMINAL MM
•
HEAD HEIGHT: 13.0 MILLIMETERS NOMINAL MM
•
FASTENER LENGTH: 41.00 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 36.0 MILLIMETERS NOMINAL MM
•
THREAD LENGTH: 38.0 MILLIMETERS MINIMUM AND 41.0 MILLIMETERS MAXIMUM MM
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
•
HOLE CONFIGURATION STYLE: HEXAGON LONGITUDINAL HOLE
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS5.0 MILLIMETERS NOMINAL MM
HEAD HEIGHT13.0 MILLIMETERS NOMINAL MM
FASTENER LENGTH41.00 MILLIMETERS NOMINAL MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER36.0 MILLIMETERS NOMINAL MM
THREAD LENGTH38.0 MILLIMETERS MINIMUM AND 41.0 MILLIMETERS MAXIMUM MM
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
HOLE CONFIGURATION STYLEHEXAGON LONGITUDINAL HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 2
5305PL0816579Reference document
Same NSN cross-reference
Reference document — Informative reference only
5520237Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1276-05-293?
1276-05-293 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 1276-05-293?
There are 2 known substitutes for 1276-05-293: 5305PL0816579, 5520237. Substitute compatibility should be verified for your specific system.
What is the NSN for 1276-05-293?
1276-05-293 is cataloged in the U.S. Government catalog under NSN 5305-01-221-9771. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.